In class writing

My character is a kid who gets so many bullie from his classmate. Finally one day he cannot take it any more, so he stands up to against. I understand this character should be a little afraid of them at the beginning, then the emotion builds up and up. Finally he opens his all emotion, and he finally get stronger. I think the setting of the scene would be on the street, and he is alone in the corner. My movements would be a little push around and step forward to show that he is not afraid anymore. Instead of showing angry emotion at the beginning, I want to show it more like that he doesn't care. Then he turned to be angry.